ACOUSTIC SEISMIC MICROPHONES USED

Brand	Owner	Address	Description
EARS	SHELL PETROLEUM INC.	910 Louisiana osp 4794 Houston TX 77002	Acoustic and seismic microphones used to monitor the response of petroleum reservoirs;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Two or more microphones receive acoustic signals and generate audio signals that are processed to determine what portion of the audio signals result from (i) incoherence between the audio signals and/or (ii) audio-signal sources having propagation speeds different from the acoustic signals. The audio signals are filtered to reduce that portion of one or more of the audio signals. The present invention can be used to reduce turbulent wind-noise resulting from wind or other airjets blowing across the microphones. Time-dependent phase and amplitude differences between the microphones can be compensated for based on measurements made in parallel with routine audio system processing.